English: Lee Jung Bong also revealed the reason to his collaboration with SS501 Heo Young Saeng on the inclusive track in his album 'Goodbye My Love', "Everytime Heo Young Saeng releases an album, I've been gathering them all. And so I met up with him once and suggested 'let's do a recording together some day'. I requested to him if we could do a song together this time and he readily agreed."

English: So how was the collaboration chemistry with junior Heo Young Saeng in comparison to Lee Jung Bong who has had debuted for already 17 years. "Young Saeng has a very thin voice line. As I thought that we both have the same type of tone voice line, there were some parts in the song that I deliberately sang it thicker (voice line). The 1st and 2nd verse of duets these days are sung separately, that's why it didn't feel mundane."

English: He was also full of praises for his junior Heo Young Saeng who agreed to make a featuring in this album after such a long while,"Young Saeng is more handsome than I thought. Good-natured and amiable. We did three hours of recording and there was no complains or happenings and whatsnot. Tall and good looking. Haha."

English: A duet song with SS501 Heo Young Saeng 'Goodbye My Love' is also inclusive in this time's album."It was initially a song that I made for Heo Young Saeng. But because I wondered if it would be a little difficult for him so I didn't do it eventually; thus we end up doing it together this time."